X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=src%2FSDCCval.c;h=d944b5c8cd38ec6fed8f35ac4946bc1250d6854b;hb=288b9ad179d5164fa969df89ce7bfcc9946cb17c;hp=04fd633c32cdf666833ff22f14b07ef8eb5a6be5;hpb=b2ea6b9d7e1c56cf0800df2a974d202ad50d28a8;p=fw%2Fsdcc diff --git a/src/SDCCval.c b/src/SDCCval.c index 04fd633c..d944b5c8 100644 --- a/src/SDCCval.c +++ b/src/SDCCval.c @@ -29,12 +29,6 @@ #include #include "newalloc.h" -#if defined(__BORLANDC__) || defined(_MSC_VER) -#define LONG_LONG __int64 -#else -#define LONG_LONG long long -#endif - int cNestLevel; /*-----------------------------------------------------------------*/ @@ -310,10 +304,13 @@ symbolVal (symbol * sym) } if (*sym->rname) - sprintf (val->name, "%s", sym->rname); + { + SNPRINTF (val->name, sizeof(val->name), "%s", sym->rname); + } else - sprintf (val->name, "_%s", sym->name); - + { + SNPRINTF (val->name, sizeof(val->name), "_%s", sym->name); + } return val; } @@ -343,32 +340,29 @@ value *cheapestVal (value *val) { } if (SPEC_USIGN(val->type)) { - if (uval<=0xff) { - SPEC_NOUN(val->type)=V_CHAR; + if (uval<=0xffff) { SPEC_LONG(val->type)=0; - } else { - if (uval<=0xffff) { - SPEC_LONG(val->type)=0; + SPEC_CVAL(val->type).v_uint = uval; + if (uval<=0xff) { + SPEC_NOUN(val->type)=V_CHAR; } } - } else { + } else { // not unsigned if (sval<0) { - if (sval>=-128) { - SPEC_NOUN(val->type)=V_CHAR; - SPEC_CVAL(val->type).v_int &= 0xff; + if (sval>=-32768) { SPEC_LONG(val->type)=0; - } else { - if (sval>=-32768) { - SPEC_LONG(val->type)=0; + SPEC_CVAL(val->type).v_int = sval; + if (sval>=-128) { + SPEC_NOUN(val->type)=V_CHAR; } } - } else { - if (sval<=127) { - SPEC_NOUN(val->type)=V_CHAR; + } else { // sval>=0 + SPEC_USIGN(val->type)=1; + if (sval<=65535) { SPEC_LONG(val->type)=0; - } else { - if (sval<=32767) { - SPEC_LONG(val->type)=0; + SPEC_CVAL(val->type).v_int = sval; + if (sval<=255) { + SPEC_NOUN(val->type)=V_CHAR; } } } @@ -386,11 +380,11 @@ valueFromLit (double lit) if ((((long) lit) - lit) == 0) { - sprintf (buffer, "%ld", (long) lit); + SNPRINTF (buffer, sizeof(buffer), "%ld", (long) lit); return constVal (buffer); } - sprintf (buffer, "%f", lit); + SNPRINTF (buffer, sizeof(buffer), "%f", lit); return constFloatVal (buffer); } @@ -409,8 +403,7 @@ constFloatVal (char *s) return constVal ("0"); } - val->type = val->etype = newLink (); - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->type) = V_FLOAT; SPEC_SCLS (val->type) = S_LITERAL; SPEC_CVAL (val->type).v_float = sval; @@ -427,21 +420,16 @@ value *constVal (char *s) short hex = 0, octal = 0; char scanFmt[10]; int scI = 0; - LONG_LONG sval; + double dval; val = newValue (); /* alloc space for value */ - val->type = val->etype = newLink (); /* create the spcifier */ - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); /* create the spcifier */ SPEC_SCLS (val->type) = S_LITERAL; // let's start with an unsigned char SPEC_NOUN (val->type) = V_CHAR; SPEC_USIGN (val->type) = 1; - /* set the _long flag if 'lL' is found */ - if (strchr (s, 'l') || strchr (s, 'L')) - SPEC_LONG (val->type) = 1; - hex = ((strchr (s, 'x') || strchr (s, 'X')) ? 1 : 0); /* set the octal flag */ @@ -451,7 +439,6 @@ value *constVal (char *s) /* create the scan string */ scanFmt[scI++] = '%'; - scanFmt[scI++] = 'l'; scanFmt[scI++] = 'l'; if (octal) @@ -459,37 +446,65 @@ value *constVal (char *s) else if (hex) scanFmt[scI++] = 'x'; else - scanFmt[scI++] = 'd'; + scanFmt[scI++] = 'f'; scanFmt[scI++] = '\0'; - sscanf (s, scanFmt, &sval); + if (octal || hex) { + unsigned long sval; + sscanf (s, scanFmt, &sval); + dval=sval; + } else { + sscanf (s, scanFmt, &dval); + } + + /* Setup the flags first */ + /* set the _long flag if 'lL' is found */ + if (strchr (s, 'l') || strchr (s, 'L')) { + SPEC_NOUN (val->type) = V_INT; + SPEC_LONG (val->type) = 1; + } - if (sval<0) { // "-28u" will still be signed and negative + if (dval<0) { // "-28u" will still be signed and negative SPEC_USIGN (val->type) = 0; - if (sval<-32768) { // check if we have to promote to long + if (dval<-128) { // check if we have to promote to int SPEC_NOUN (val->type) = V_INT; + } + if (dval<-32768) { // check if we have to promote to long int SPEC_LONG (val->type) = 1; - SPEC_CVAL (val->type).v_long=sval; - } else { - SPEC_CVAL (val->type).v_int=sval; - if (sval<-128) { // check if we have to promote to int - SPEC_NOUN (val->type) = V_INT; - } } - } else { - if (sval>0xffff) { // check if we have to promote to long + } else { // >=0 + if (dval>0xff) { // check if we have to promote to int SPEC_NOUN (val->type) = V_INT; + } + if (dval>0xffff) { // check if we have to promote to long int SPEC_LONG (val->type) = 1; - SPEC_CVAL (val->type).v_ulong=sval; - } else { - SPEC_CVAL (val->type).v_uint=sval; - if (sval>0xff) { // check if we have to promote to int - SPEC_NOUN (val->type) = V_INT; - } } } + if (SPEC_LONG (val->type)) + { + if (SPEC_USIGN (val->type)) + { + SPEC_CVAL (val->type).v_ulong = dval; + } + else + { + SPEC_CVAL (val->type).v_long = dval; + } + } + else + { + if (SPEC_USIGN (val->type)) + { + SPEC_CVAL (val->type).v_uint = dval; + } + else + { + SPEC_CVAL (val->type).v_int = dval; + } + } + return val; } @@ -648,10 +663,9 @@ strVal (char *s) val = newValue (); /* get a new one */ /* get a declarator */ - val->type = newLink (); + val->type = newLink (DECLARATOR); DCL_TYPE (val->type) = ARRAY; - val->type->next = val->etype = newLink (); - val->etype->class = SPECIFIER; + val->type->next = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->etype) = V_CHAR; SPEC_SCLS (val->etype) = S_LITERAL; @@ -741,7 +755,7 @@ copyValue (value * src) dest = newValue (); dest->sym = copySymbol (src->sym); - strcpy (dest->name, src->name); + strncpyz (dest->name, src->name, SDCC_NAME_MAX); dest->type = (src->type ? copyLinkChain (src->type) : NULL); dest->etype = (src->type ? getSpec (dest->type) : NULL); @@ -759,8 +773,7 @@ charVal (char *s) val = newValue (); - val->type = val->etype = newLink (); - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->type) = V_CHAR; SPEC_USIGN(val->type) = 1; SPEC_SCLS (val->type) = S_LITERAL; @@ -773,37 +786,37 @@ charVal (char *s) switch (*s) { case 'n': - SPEC_CVAL (val->type).v_int = '\n'; + SPEC_CVAL (val->type).v_uint = '\n'; break; case 't': - SPEC_CVAL (val->type).v_int = '\t'; + SPEC_CVAL (val->type).v_uint = '\t'; break; case 'v': - SPEC_CVAL (val->type).v_int = '\v'; + SPEC_CVAL (val->type).v_uint = '\v'; break; case 'b': - SPEC_CVAL (val->type).v_int = '\b'; + SPEC_CVAL (val->type).v_uint = '\b'; break; case 'r': - SPEC_CVAL (val->type).v_int = '\r'; + SPEC_CVAL (val->type).v_uint = '\r'; break; case 'f': - SPEC_CVAL (val->type).v_int = '\f'; + SPEC_CVAL (val->type).v_uint = '\f'; break; case 'a': - SPEC_CVAL (val->type).v_int = '\a'; + SPEC_CVAL (val->type).v_uint = '\a'; break; case '\\': - SPEC_CVAL (val->type).v_int = '\\'; + SPEC_CVAL (val->type).v_uint = '\\'; break; case '\?': - SPEC_CVAL (val->type).v_int = '\?'; + SPEC_CVAL (val->type).v_uint = '\?'; break; case '\'': - SPEC_CVAL (val->type).v_int = '\''; + SPEC_CVAL (val->type).v_uint = '\''; break; case '\"': - SPEC_CVAL (val->type).v_int = '\"'; + SPEC_CVAL (val->type).v_uint = '\"'; break; case '0' : @@ -845,7 +858,7 @@ valFromType (sym_link * type) } /*------------------------------------------------------------------*/ -/* floatFromVal - value to unsinged integer conversion */ +/* floatFromVal - value to double float conversion */ /*------------------------------------------------------------------*/ double floatFromVal (value * val) @@ -875,17 +888,32 @@ floatFromVal (value * val) return (double) SPEC_CVAL (val->etype).v_long; } - if (SPEC_NOUN(val->etype)==V_INT) { + if (SPEC_NOUN (val->etype) == V_INT) { if (SPEC_USIGN (val->etype)) return (double) SPEC_CVAL (val->etype).v_uint; else return (double) SPEC_CVAL (val->etype).v_int; - } else { // SPEC_NOUN==V_CHAR + } + + if (SPEC_NOUN (val->etype) == V_CHAR) { if (SPEC_USIGN (val->etype)) - return (double) ((unsigned char)SPEC_CVAL (val->etype).v_uint); + return (double) (unsigned char)SPEC_CVAL (val->etype).v_uint; else - return (double) ((signed char)SPEC_CVAL (val->etype).v_int); + return (double) (signed char)SPEC_CVAL (val->etype).v_int; + } + + if (IS_BITVAR(val->etype)) { + return (double) SPEC_CVAL (val->etype).v_uint; + } + + if (SPEC_NOUN (val->etype) == V_VOID) { + return (double) SPEC_CVAL (val->etype).v_ulong; } + + // we are lost ! + werror (E_INTERNAL_ERROR, __FILE__, __LINE__, + "floatFromVal: unknown value"); + return 0; } @@ -913,13 +941,16 @@ valUnaryPM (value * val) SPEC_CVAL (val->etype).v_uint = 0-SPEC_CVAL (val->etype).v_uint; else SPEC_CVAL (val->etype).v_int = -SPEC_CVAL (val->etype).v_int; - if (SPEC_NOUN (val->etype)==V_CHAR) { - SPEC_CVAL (val->etype).v_uint &= 0xff; - } } } // -(unsigned 3) now really is signed SPEC_USIGN(val->etype)=0; + // -(unsigned char)135 now really is an int + if (SPEC_NOUN(val->etype) == V_CHAR) { + if (SPEC_CVAL(val->etype).v_int < -128) { + SPEC_NOUN(val->etype) = V_INT; + } + } return val; } @@ -943,10 +974,9 @@ valComplement (value * val) SPEC_CVAL (val->etype).v_uint = ~SPEC_CVAL (val->etype).v_uint; else SPEC_CVAL (val->etype).v_int = ~SPEC_CVAL (val->etype).v_int; - if (SPEC_NOUN (val->etype)==V_CHAR) { - SPEC_CVAL (val->etype).v_uint &= 0xff; - } } + // ~(unsigned 3) now really is signed + SPEC_USIGN(val->etype)=0; return val; } @@ -970,9 +1000,6 @@ valNot (value * val) SPEC_CVAL (val->etype).v_uint = !SPEC_CVAL (val->etype).v_uint; else SPEC_CVAL (val->etype).v_int = !SPEC_CVAL (val->etype).v_int; - if (SPEC_NOUN (val->etype)==V_CHAR) { - SPEC_CVAL (val->etype).v_uint &= 0xff; - } } return val; } @@ -987,13 +1014,12 @@ valMult (value * lval, value * rval) /* create a new value */ val = newValue (); - val->type = val->etype = newLink (); - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) || IS_FLOAT (rval->etype) ? V_FLOAT : V_INT); SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */ SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) & SPEC_USIGN (rval->etype)); - SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype)); + SPEC_LONG (val->type) = 1; if (IS_FLOAT (val->type)) SPEC_CVAL (val->type).v_float = floatFromVal (lval) * floatFromVal (rval); @@ -1008,15 +1034,6 @@ valMult (value * lval, value * rval) SPEC_CVAL (val->type).v_long = (long) floatFromVal (lval) * (long) floatFromVal (rval); } - else - { - if (SPEC_USIGN (val->type)) - SPEC_CVAL (val->type).v_uint = (unsigned) floatFromVal (lval) * - (unsigned) floatFromVal (rval); - else - SPEC_CVAL (val->type).v_int = (int) floatFromVal (lval) * - (int) floatFromVal (rval); - } } return cheapestVal(val); } @@ -1037,8 +1054,7 @@ valDiv (value * lval, value * rval) /* create a new value */ val = newValue (); - val->type = val->etype = newLink(); - val->type->class = SPECIFIER; + val->type = val->etype = newLink(SPECIFIER); SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) || IS_FLOAT (rval->etype) ? V_FLOAT : V_INT); SPEC_SCLS (val->etype) = S_LITERAL; @@ -1083,8 +1099,7 @@ valMod (value * lval, value * rval) /* create a new value */ val = newValue (); - val->type = val->etype = newLink (); - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->type) = V_INT; /* type is int */ SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */ SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) & SPEC_USIGN (rval->etype)); @@ -1123,8 +1138,7 @@ valPlus (value * lval, value * rval) /* create a new value */ val = newValue (); - val->type = val->etype = newLink (); - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) || IS_FLOAT (rval->etype) ? V_FLOAT : V_INT); SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */ @@ -1133,7 +1147,7 @@ valPlus (value * lval, value * rval) SPEC_USIGN (rval->etype) && (floatFromVal(lval)+floatFromVal(rval))>=0; - SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype)); + SPEC_LONG (val->type) = 1; if (IS_FLOAT (val->type)) SPEC_CVAL (val->type).v_float = floatFromVal (lval) + floatFromVal (rval); @@ -1148,16 +1162,6 @@ valPlus (value * lval, value * rval) SPEC_CVAL (val->type).v_long = (long) floatFromVal (lval) + (long) floatFromVal (rval); } - else - { - if (SPEC_USIGN (val->type)) { - SPEC_CVAL (val->type).v_uint = (unsigned) floatFromVal (lval) + - (unsigned) floatFromVal (rval); - } else { - SPEC_CVAL (val->type).v_int = (int) floatFromVal (lval) + - (int) floatFromVal (rval); - } - } } return cheapestVal(val); } @@ -1172,8 +1176,7 @@ valMinus (value * lval, value * rval) /* create a new value */ val = newValue (); - val->type = val->etype = newLink (); - val->type->class = SPECIFIER; + val->type = val->etype = newLink (SPECIFIER); SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) || IS_FLOAT (rval->etype) ? V_FLOAT : V_INT); SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */ @@ -1226,7 +1229,7 @@ valShift (value * lval, value * rval, int lr) val->type = val->etype = newIntLink (); SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */ SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) & SPEC_USIGN (rval->etype)); - SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype)); + SPEC_LONG (val->type) = 1; if (SPEC_LONG (val->type)) { @@ -1239,18 +1242,6 @@ valShift (value * lval, value * rval, int lr) (long) floatFromVal (lval) << (long) floatFromVal (rval) : \ (long) floatFromVal (lval) >> (long) floatFromVal (rval); } - else - { - if (SPEC_USIGN (val->type)) { - SPEC_CVAL (val->type).v_uint = lr ? - (unsigned) floatFromVal (lval) << (unsigned) floatFromVal (rval) :\ - (unsigned) floatFromVal (lval) >> (unsigned) floatFromVal (rval); - } else { - SPEC_CVAL (val->type).v_int = lr ? - (int) floatFromVal (lval) << (int) floatFromVal (rval) : \ - (int) floatFromVal (lval) >> (int) floatFromVal (rval); - } - } return cheapestVal(val); } @@ -1312,7 +1303,8 @@ valBitwise (value * lval, value * rval, int op) /* create a new value */ val = newValue (); - val->type = copyLinkChain (lval->type); + val->type = copyLinkChain (getSize(rval->type) > getSize(lval->type) ? + rval->type : lval->type); val->etype = getSpec (val->type); switch (op) @@ -1430,34 +1422,27 @@ valCastLiteral (sym_link * dtype, double fval) SPEC_SCLS (val->etype) = S_LITERAL; /* if it is not a specifier then we can assume that */ /* it will be an unsigned long */ - if (!IS_SPEC (val->type)) - { + if (!IS_SPEC (val->type)) { SPEC_CVAL (val->etype).v_ulong = (unsigned long) fval; return val; - } + } if (SPEC_NOUN (val->etype) == V_FLOAT) - SPEC_CVAL (val->etype).v_float = fval; - else - { - if (SPEC_LONG (val->etype)) - { + SPEC_CVAL (val->etype).v_float = fval; + else { + unsigned long l = fval; + if (SPEC_LONG (val->etype)) { if (SPEC_USIGN (val->etype)) - SPEC_CVAL (val->etype).v_ulong = (unsigned long) fval; + SPEC_CVAL (val->etype).v_ulong = (unsigned long) l; else - SPEC_CVAL (val->etype).v_long = (long) fval; - } - else - { + SPEC_CVAL (val->etype).v_long = (long) l; + } else { if (SPEC_USIGN (val->etype)) - SPEC_CVAL (val->etype).v_uint = (unsigned short)fval; + SPEC_CVAL (val->etype).v_uint = (unsigned short)l; else - SPEC_CVAL (val->etype).v_int = (short)fval; - if (SPEC_NOUN (val->etype)==V_CHAR) { - SPEC_CVAL (val->etype).v_uint &= 0xff; - } - } - } + SPEC_CVAL (val->etype).v_int = (short)l; + } + } return val; } @@ -1467,7 +1452,6 @@ valCastLiteral (sym_link * dtype, double fval) int getNelements (sym_link * type, initList * ilist) { - sym_link *etype = getSpec (type); int i; if (!ilist) @@ -1478,13 +1462,13 @@ getNelements (sym_link * type, initList * ilist) /* if type is a character array and there is only one (string) initialiser then get the length of the string */ - if (IS_ARRAY (type) && IS_CHAR (etype) && !ilist->next) + if (IS_ARRAY (type) && IS_CHAR (type->next) && !ilist->next) { ast *iast = ilist->init.node; value *v = (iast->type == EX_VALUE ? iast->opval.val : NULL); if (!v) { - werror (W_INIT_WRONG); + werror (E_CONST_EXPECTED); return 0; } @@ -1501,7 +1485,6 @@ getNelements (sym_link * type, initList * ilist) i++; ilist = ilist->next; } - return i; } @@ -1539,14 +1522,18 @@ valForArray (ast * arrExpr) val = newValue (); if (!lval) - sprintf (buffer, "%s", AST_SYMBOL (arrExpr->left)->rname); + { + SNPRINTF (buffer, sizeof(buffer), "%s", AST_SYMBOL (arrExpr->left)->rname); + } else - sprintf (buffer, "%s", lval->name); + { + SNPRINTF (buffer, sizeof(buffer), "%s", lval->name); + } - sprintf (val->name, "(%s + %d)", buffer, + SNPRINTF (val->name, sizeof(val->name), "(%s + %d)", buffer, (int) AST_LIT_VALUE (arrExpr->right) * size); - val->type = newLink (); + val->type = newLink (DECLARATOR); if (SPEC_SCLS (arrExpr->left->etype) == S_CODE) { DCL_TYPE (val->type) = CPOINTER; @@ -1606,14 +1593,18 @@ valForStructElem (ast * structT, ast * elemT) val = newValue (); if (!lval) - sprintf (buffer, "%s", AST_SYMBOL (structT)->rname); + { + SNPRINTF(buffer, sizeof(buffer), "%s", AST_SYMBOL (structT)->rname); + } else - sprintf (buffer, "%s", lval->name); + { + SNPRINTF (buffer, sizeof(buffer), "%s", lval->name); + } - sprintf (val->name, "(%s + %d)", buffer, + SNPRINTF (val->name, sizeof(val->name), "(%s + %d)", buffer, (int) sym->offset); - val->type = newLink (); + val->type = newLink (DECLARATOR); if (SPEC_SCLS (structT->etype) == S_CODE) { DCL_TYPE (val->type) = CPOINTER; @@ -1650,7 +1641,7 @@ valForCastAggr (ast * aexpr, sym_link * type, ast * cnst, int op) val = newValue (); - sprintf (val->name, "(%s %c %d)", + SNPRINTF (val->name, sizeof(val->name), "(%s %c %d)", AST_SYMBOL (aexpr)->rname, op, getSize (type->next) * (int) AST_LIT_VALUE (cnst)); @@ -1673,7 +1664,7 @@ valForCastArr (ast * aexpr, sym_link * type) val = newValue (); - sprintf (val->name, "(%s)", + SNPRINTF (val->name, sizeof(val->name), "(%s)", AST_SYMBOL (aexpr)->rname); val->type = type;